I haven't used YouTube commenting since 2009 -- right now I got into it again, but my activity feed is slow. I wrote three comments on a video, and the last one got into my activity feed. The one I replied to made a response (I can see it on his activity feed), but it has NOT popped on the video page yet. And my comment on another video has not appeared on the activity feed either.

Is this delay temporary or normal? I suppose if normal, it could be to reduce the flow or messages. Seems boring.